Struct AlterSystem 

pub struct AlterSystem {
    pub action: AlterSystemAction,
    pub meta: Meta,
}

A PostgreSQL ALTER SYSTEM { SET <name> {= | TO} <value> | RESET <name> | RESET ALL } statement (AlterSystemStmt), gated by StatementDdlGates::alter_system.

ALTER SYSTEM writes and clears the server-wide persisted configuration (PostgreSQL’s postgresql.auto.conf), not a session parameter — but its grammar is a thin wrapper over the very generic_set / generic_reset productions the session SET / RESET use, so the setting-name / value axis is shared verbatim rather than re-minted. The SET form is a dotted var_name plus the = / TO separator (SetAssignment) and a var_list-or- DEFAULT value (SetValue); the RESET form is the var_name-or-ALL target (ConfigParameter).

Unlike the session SET, ALTER SYSTEM SET admits no SESSION / LOCAL scope (a scope keyword is a reject) and no SET FROM CURRENT form — the wrapper is exactly generic_set / generic_reset, measured against pg_query.

Fields

action: AlterSystemAction

The change applied to the server-wide configuration — a SET assignment or a RESET.

meta: Meta

Source location and node identity.

Trait Implementations

impl Clone for AlterSystem

fn clone(&self) -> AlterSystem

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for AlterSystem

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AlterSystem

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for AlterSystem

impl Hash for AlterSystem

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for AlterSystem

fn eq(&self, other: &AlterSystem) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Render for AlterSystem

fn render(&self, ctx: &RenderCtx<'_>, f: &mut Formatter<'_>) -> Result

Return the render for this value.

fn operand_binding_power(&self) -> Option<BindingPower>

The binding power this node contributes when it appears as an operand, or None (the default) for a self-delimiting node — an atom, call, or constructor — that never needs parentheses.

impl Serialize for AlterSystem

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Spanned for AlterSystem

fn span(&self) -> Span

Return the span for this value.

impl StructuralPartialEq for AlterSystem